Engine.



UNITED STATES PATENT OFFICE.

ENGINE.

Specification of Letters Patent.

Patented March 6, 1906.

Application filed October 10. 1904. Serial No.227,848.

T0 aLZ whom, it may concern: 1

Be it known that I, ISADOR LEHMAN, a citizen of the United States ofAmerica, residing at Cleveland, in the county of Cuyahoga and State ofOhio, have invented certain new and useful Improvements in EnginesOperated by.

Fluid Under Pressure; and I hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it pertains to make and use the same.

This invention relates to improvements in upright engines operated byfluid under pressure.

One object of this invention is the provision, in an upright engine, ofsuch a simplified operative connection between the piston of thecylinder of the engine and the crank of the engine-shaft that therequired reciprocations or movements of the piston and the connectedpitman are not only materially shorter than would be the case if thesaid pitman were directly connected with the crank,

but that the arrangement of the parts is convenient, that the number ofparts required to form the aforesaid operative connection is reduced toa minimum, and that the provision of a guide-rod arranged parallel andmovable with the piston-rod is accommodated.

Another object is to provide a simple and meritorious stationaryframework for the engine, which framework is composed of members whichare readily assembled and secured in place;

With these objects in view this invention consists in certainpeculiarities of construction and arrangement and combinations of partshereinafter described, and pointed out in the claims.

The accompanying drawing is a side elevation, largely in section, of thegreater portion of an upright steamengine embodying my invention.

Referring to the drawing, A designates the vertically-arranged cylinderof an upright steam-engine, a the piston contained within and adapted tooperate endwise of the cylinder, and B the stationary framework of theengine.

The framework B comprises a horizontally-arranged base-plate 3, ahorizontallyarranged top plate 5, and an intermediatehorizontally-arranged plate 4. The plates 3, 4, and are suitably spacedvertically and parallel. The intermediate plate 4 is arranged nearer thetop plate 5 than to the 'base-plate 3.

The base-plate 3 rests upon the floor or foundation C, upon which the engine is mounted. The framework B also comprises any suitable number ofupright posts formed by rods 6, which extend vertically throughcorrespondingly-arranged holes 2, formed in the plates 3, 4, and 5, anda suitable distance above and below the plates 5 and 3, respectively.The end portions of the rods 6 are screw-threaded externally, andcorrespondinglyscrew-threaded nuts 7 are mounted on the said rods nextbelow the base-plate 3, and the floor or foundation C is reduced, as at8, to accommodate the location of the said nuts. Also nuts 10 aremounted on the rods 6 next above the baseplate 3. The nuts 7 and 10secure the vertical posts formed by the rods 6 to the'baseplate 3.

The plate 4 is mounted upon the upper ends of tubes 13, which embracethe rods 6 and extend between the said plate and the nuts 10 and restupon the said nuts, and consequently upon the base-plate 3.

The. top plate 5 rests upon the upper ends of tubes 14, which embraceand extend longitudinally of the rods 6 between the said plate 5 and theplate 4 and rest upon the lastmentioned plate. Nuts 12 are mounted onthe rod 6 next above the top plate 5 and hold the said plate down uponthe tubes 14-. It will be observed, therefore, that the framework B issimple in construction and composed of sections which are readilyassembled.

The cylinder A is mounted upon the plate 5. The rod or stem 15 of thepiston (1 extends vertically through the lower head of the cylinder andthrough the topplate 5 into the space between the plates 4 and 5, andthe plate 5 is slotted, as at 9, to accommodate the location andoperation of the piston-rod.

The engine-shaft G is supported in any approved manner from the plate 3.The shaft G is arranged horizontally and. at a right angle to the travelof the piston a, and g indicates the crank of the said shaft. The plate3 is slotted, as at 1.6, to accommodate the location and operation ofthe shaft G and its crank g, and the floor or foundation C is recessed,as at 18, to accommodate the location and operation of the said crank.The shaft G is provided with a fiy-wheel 17, and the floor or foundationC is recessed, as at 20, as shown in dotted lines, to accommodate thelocation of the said wheel.

An upright pitman f extends from the lower end of a piston-rod 15downwardly and is pivoted at its upper end, as at 22, to the said rodhorizontally and parallel with the engine-shaft. The plate 4 is slotted,as at 23, to accommodate the location and operation of the pitmanf.

A lever h is arranged to oscillate in a vertical'plane between thepiston-rod 15 and the engine-shaft G. The lever h is journaled upon anaxle Z, which is arranged horizontally preferably exactly verticallyabove and parallel with the shaft G. The axle Z is suitably supportedfrom the plate 4, which is slotted, as at 24, to accommodate thelocation and operation of the lever h. The lever h is preferably anangular lever depending from the axle Z and provided below the pitman fwith an upwardly-projecting arm 25, to which the said pitman is pivotedat its lower end, as at 26, horizontally and parallel with the shaft G.

The pivotal connection between the lever 7L and the pitmanf is arrangedat one side of the axis of the said lever, and the lever h isoperatively connected at the opposite side of its axis by means of a rodor link m with the crank g of the shaft G. The link m is pivoted at itsupper end, as at 28, horizontally and parallel with the shaft G to thelever h. The link m at its lower end loosely embraces the wrist 27 ofthe crank g.

Between the axis of the lever h and the travel of the piston-rod 15 andparallel with the said travel is a vertically-arranged guiderod 1, whichextends vertically loosely through the plates 4 and 5 and has lateralbearing in the said plates, and the piston-rod 15 and the guide-rod rare connected together between the said plates by a web 30, which isfixed in any approved manner to the said rods.

The peculiar shape of the lever 7c shown and hereinbefore describedaccommodates the location and operation of the guide-rod r.

The relative arrangement of the parts is such that the pivotalconnection between the link m and the lever h is substantially as farfrom the axis of the said lever as from the pivotal connection betweenthe lever h and the crank g and arranged. lower than the pivotalconnection between the pitman and the said lever, that the distance fromthe pivotal connection between the pitman f and the lever 7b to the axisof the said lever is approximately one-half the distance from the saidaxis to the pivotal connection between the lever and the link m, andthat the pivotal connection between the lever and the pitman is locatedfarther than the axis of the lever from the pivotal connection betweenthe lever and the link m.

What I claim is- 1. In an engine of the character indicated, ahorizontally-arranged base-plate; a horizontally-arranged top platelocated a suit able distance vertically above the base-plate; anintermediate horizontally-arranged plate between and separate from thetop plate and base-plate; vertically-arranged posts extending throughthe said plates and above and below the top plate and base-platerespectively and secured to the base-plate; tubes embracing the postsbetween the base-plate and the intermediate plate, which tubes rest uponthe base-plate and bear the intermediate plate; tubes embracing theposts between the intermediate plate and the top plate and resting uponthe intermediate plate and bearing the top plate; means for holding thetop plate down upon the last-mentioned tubes; an engine-shaft supportedfrom the baseplate; an upright engine-cylinder mounted on the top plate;the piston in the cylinder, which piston has its rod or stem dependingthrough the lower head'of the cylinder, and an upright pitman pivoted atits upper end horizontally and parallel with the shaft to the piston-rodand operatively connected at its lower end with the shaft, and the topplate being slotted to accommodate the location and operation of thepiston-rod, the intermediate plate being slotted to accommodate thelocation and operation of the operative connection between the pitmanand the shaft, and the base-plate being slotted to accommodate thelocation and operation of the crank.

2. In an engine of the character indicated, a horizontally-arrangedbase-plate; a horizontally-arranged top plate located a suitabledistance vertically above the base-plate an intermediatehorizontally-arranged plate between and separate from the top plate andbase-plate vertically-arrangedposts extending. through the said platesand above and below the top plate and base-plate respectively andsecured to the base-plate; tubes embracing the posts between thebase-plate and the intermediateplate, which tubes rest upon thebase-plate and bear the intermediate plate; tubes embracing the postsbetween the intermediate plate and the top plate and resting upon theintermediate plate and bearing the top plate; means for holding the topplate down upon the last-mentioned tubes; an engine-shaft supported fromthe baseplate and provided with a crank; an upright engine-cylindermounted on the top plate; the piston in the cylinder, which piston hasits rod or stem depending through the lower head of the cylinder; anupright pitman pivoted at its upper end horizontally and parallel withthe shaft to the piston-rod; a lever supported from the intermediateplate and arranged with its axis parallel with the shaft, which lever ispivoted to the lower end of the pitman horizontally and parallel withand at one side of the axis of the lever, and a rod or link pivoted tothe lever horizontally and parallel with and at the opposite side of theaxis of the lever and operatively connected with the crank of the shaft,and the top plate being slotted to accommodate the location andoperation of the piston-rod, the intermediate plate being slotted toaccommodate the location and operation of the pitman and the lever, andthe base-plate being slotted to accommodate the location and operationof the crank.

3. In an engine of the character indicated, a horizontally-arrangedbase-plate; a horizontally-arranged top plate located a suitabledistance vertically above the base-plate; an intermediatehorizontally-arranged plate between and separate from the top plate andbase-plate vertically-arranged posts extending through the said platesand above and below the top plate and base-plate respectively andsecured to the base-plate; tubes embracing the posts between thebase-plate and the intermediate plate, which tubes rest upon thebase-plate and bear the intermediate plate; tubes embracing the postsbetween the intermediate plate and the top plate and resting upon theintermediate plate and bearing the top plate; means for holding the topplate down upon the last-mentioned tubes; an engine-shaft supported fromthe base-plate and provided with a crank; an upright enginecylindermounted on the top plate; the piston in the cylinder, which piston hasits rod or stem depending through the lower head of the cylinder; anupright pitman pivoted at its upper end horizontally and parallel withthe shaft to the piston-rod an axle located at one side of the travel ofthe pitman and supported from the intermediate plate, which axle isarranged horizontally and parallel with the shaft; a lever ournaled onand depending from the said.axle, which lever is pivoted to the lowerend of the pitman horizontally and parallel with and at one side of theaxis of the lever, and a rod or link pivoted to the lever horizontallyand parallel with and at the opposite side of the axis of the lever andoperatively connected with the crank of the shaft, and the top platebeing slotted to accommodate the location and operation of thepiston-rod, the intermediate plate being slotted to accommodate thelocation and operation of the pitman and the lever, and the base-platebeing slotted to accommodate the location and operation of the crank.

4. In an engine of the character indicated, a horizontally-arrangedbase-plate a horizontally-arranged top plate located a suitable distancevertically above the base-plate an intermediate horizontally-arrangedplate between and separate from the top plate and base-plate;vertically-arranged posts formed and the intermediate plate, which tubesrest upon the base-plate and bear the intermediate plate; tubesembracing the rods between the intermediate plate and the top plate andresting upon the intermediate plate and bearing the top plate; nuts onthe rods at the upper side of the top plate; an engine-shaft supportedfrom the base-plate and provided with a crank; an upright enginecylindermounted on the top plate; the piston in the cylinder, which piston hasits rod or stem depending through the lower head of the cylinder, and anupright pitman pivoted at its upper end horizontally and parallel withthe shaft to the piston-rod and operatively connected at the lower endwith the shaft, and the top plate being slotted to accommodate thelocation and operation of the piston-rod, the intermediate plate beingslotted to accommodate the location and operation of the operativeconnection between the pitman and the shaft, and the base-plate beingslotted to accommodate the location and operation of the crank.

5. In an engine of the character indicated, the stationary framework;the engine-shaft provided with a crank; an engine-cylinder supportedfrom the stationary framework a suitable distance from the shaft; thepiston in the cylinder having its rod or stem extending toward theshaft; a pitman pivoted to the piston-rod and extending from thepiston-rod toward the shaft; a lever supported from the stationaryframework and arranged between the pitman and the shaft with the axis ofthe lever parallel with the shaft, which lever has an arm projectingtoward and pivoted to the pitman horizontally and at one side of andparallel with the axis of the lever; a rod or link pivoted to the leverhorizontally at the opposite side of and parallel with the axis of thelever and operatively connected with the crank of the shaft, and aguide-rod arranged at one side of and parallel and operatively connectedwith the piston-rod, and the stationary framework affording bearing tothe said guide-rod.

In testimony whereof I sign the foregoing specification, in the presenceof two witnesses, this 6th day of October, 1904, at Cleveland, Ohio.

ISADOR LEHMAN.

Witnesses:

C. H. DORER, G. M. HAYES.

